Some people just have too much time on their hands. And it doesn't help that media is spreading this, as it generates clicks which in turn generates money. As such, total non-issues will be made an issue.
The thing is, it's not even "mass" insanity. Working people who are busy with a family and such don't really post on social media, as they simply have no time. This creates a pretty large divide between the internet and real life. Though, I say this as someone not being part of the tech world which is more closely connected with social media.